/*    ARRAYLIB.C
 *    - array library function definitions
*/

#include <stdio.h>
#include <stdlib.h>
#include "arraylib.h"


void swapInts(int *a, int *b)
{
    int temp = *a;
    *a = *b;
    *b = temp;
}


/*
 *  copyArray: if a and b are the same length, copies the corresponding
 *  values of a into b
*/
void copyArray(int a[], int aLen, int b[], int bLen)
{
    int i;
    if (aLen != bLen)
        return; /* don't try to copy different sized arrays */
    for (i = 0; i < aLen ; i++)
        b[i] = a[i];
}


/*
 *  swapArrays: if a and b are the same length, swaps the corresponding
 *  values of a and b
*/
void swapArrays(int a[], int aLen, int b[], int bLen)
{
    int i;
    if (aLen != bLen)
        return; /* don't try to swap different sized arrays */
    for (i = 0; i < aLen ; i++)
        swapInts(&a[i], &b[i]);
}


void printArray(int arr[], int arrLen)
{
    int i;
    for (i = 0; i < arrLen; i++)
        printf( "%3d ", arr[i]);
    printf("\n");
}